You want to use RMAN to create c

题目

You want to use RMAN to create compressed backups.Which statement is true about the compression algorithms that RMAN can use?()

  • A、The BZIP2 compression algorithm consumes more CPU resources than the ZLIB compression algorithm.
  • B、The ZLIB compression algorithm consumes more CPU resources than the BZIP2 compression algorithm.
  • C、The ZLIB compression algorithm provides maximum compression and produces smaller backups than the BZIP2 compression algorithm.
  • D、Only the BZIP2 compression algorithm can be used to make compressed backups to disk.
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相似问题和答案

第1题:

You want to create the Recovery Manager (RMAN) Virtual Private Catalog (VPC) to maintain a separation of responsibilities along with a consolidation of RMAN repository. Which condition must be met before you create the VPC?()

  • A、A base catalog exists
  • B、The recovery catalog is empty
  • C、The base recovery catalog must be dropped
  • D、A target database is registered in the recovery catalog

正确答案:A

第2题:

You want the size of the tablespace to increase when it is full. Which option would you use?()

  • A、use automatic extent allocation
  • B、disable threshold for the tablespace
  • C、use freelists to manage the free space
  • D、use automatic segment space management
  • E、create the tablespace as a bigfile tablespace
  • F、use the RESIZE clause while creating the tablespace
  • G、enable AUTOEXTEND for at least one of the data files in the tablespace

正确答案:G

第3题:

You create a Web application for your company‘s intranet. You want to enable users to customize their versions of the intranet home page. You create sections of content as Web Parts. You need to ensure that users can customize content at any time.Which two code segments should you use?()

A.

B.

C.

D.


参考答案:B, C

第4题:

What RMAN command must you use before you can back up a database using the recovery catalog?()

  • A、 create catalog
  • B、 install database
  • C、 catalog database
  • D、 merge Catalog with database
  • E、 register database

正确答案:E

第5题:

Your database runs in NOARCHIVELOG mode, and is backed up every night using RMAN scripts. However, last night your assistant DBA performed a manual operating system backup, instead of running the scripts. Today your database crashed and you now want to use the backups from last night. What do you need todo?()

  • A、You need to perform the restore and recover operations manually, because the backup was made manually. 
  • B、First you need to resynchronize the catalog with the control file, and then you can use RMAN to recover the database. 
  • C、First you need to add the backup to the catalog using the CATALOG command, and then you can use RMAN to recover the database. 
  • D、You can just use RMAN and recover the database, because RMAN automatically updates the catalog with the backup information. 

正确答案:C

第6题:

In which three cases would you use the USING clause?()

  • A、You want to create a nonequijoin.
  • B、The tables to be joined have multiple NULL columns.
  • C、The tables to be joined have columns of the same name and different data types.
  • D、The tables to be joined have columns with the same name and compatible data types.
  • E、You want to use a NATURAL join, but you want to restrict the number of columns in the join condition.

正确答案:C,D,E

第7题:

You want to create a role to meet these requirements:  1:The role is to be protected from unauthorized usage.  2:The password of the role is not to be embedded in the application source code or stored in a table.  Which method would you use to restrict enabling of such roles()

  • A、Create the role with global authentication.
  • B、Create the role with external authentication.
  • C、Create the role as a secure application role.
  • D、Create the role as a password-protected role.
  • E、Create a role and use Fine-Grained Access Control (FGAC) to secure the role.

正确答案:C

第8题:

You are the administrator of a SQL Server 2000 computer in your company's personnel department. Employee data is stored in a SQL Server 2000 database. A portion of the database schema is shown in the exhibit.

You want to create a text file that lists these data columns in the following format title, FirstName, LastName, WorkPhone, PositionName, DepartmentName.

You want to create the text file as quickly as possible. You do not expect to re-create this file, and you want to avoid creating new database objects if possible.

What should you do?

A.Use the bcp utility to export data from each table to a separate text file. Use format files to select the appropriate columns. Merge the data from each text file into a single text file.

B.Create a view that joins data from all three tables include only the columns you want to appear in the text file. Use the bcp utility to export data from the view.

C.Create a SELECT query that joins the data from the appropriate columns in the three tables. Add an INTO clause to the query to create a local temporary table. Use the bcp utility to export data from the local temporary table to a text file.

D.Create a SELECT query that joins the data from the appropriate columns in the three tables. Add an INTO clause to the query to create a global temporary table. Use the bcp utility to export data from the global temporary table to a text file.


正确答案:D
解析:Explanation:Asthecolumnsthatwewantinthetextfileareondifferenttablesinthedatabase,wewouldhavetocombinethecolumnintoatableorview.Becausewewillnotneedtoreproducethefile,wecanwecancombinethecolumnfromthevarioustablesintoaglobaltemporarytablebyusingtheSELECTINTOstatement.Thenweusethebcputilitytoexportthedatafromtheglobaltemporaryfiletoatextfile.Note:Temporarytablesarenotstoredinthecurrentdatabase;theyarestoredinthetempdbsystem.Therearetwotypesoftemporarytables:localtemporarytables,whicharevisibleonlytotheconnectionthatcreatedthem,andglobaltemporarytables,thatarevisibletoallconnections.Ifglobaltemporarytablesarenotdroppedexplicitlybeforetheconnectionthatcreatedthemdisconnects,theyaredroppedassoonasallothertasksstopreferencingthem.Nonewtaskscanreferenceaglobaltemporarytableaftertheconnectionthatcreateditdisconnects.ThebcputilitycopiesdatabetweenaninstanceofSQLServer2000andadatafileinauser-specifiedformat.ItcanbeusedtotransferdatafromaSQLServertabletoadatafileforuseinotherprograms.Furthermore,datacanalsobetransferredoutbyspecifyingaSELECTstatement.Thebcputilitycanuseglobaltemporarytables,butnotlocaltemporarytables.IncorrectAnswers:A:CreatingaglobaltemporarytablebyusingtheSELECTstatementandusingthebcputilitytoexportdatafromthattablewouldrequirelessadministrativeeffortthanusingbcptoexporttherequiredcolumnsfromeachtableintoaseparatetextfileandthenmergingthosetextfilesintoasingletextfile.B:Becausewewouldnotneedtore-createthedatafileagain,itwouldbeeasiertousetheSELECTstatementtocreateaglobaltemporarytableasthesetablesaredroppedautomaticallywhennothingreferencethem.C:Thebcputilitycannotuselocaltemporarytables.Note:Temporarytablesarenotstoredinthecurrentdatabase;theyarestoredinthetempdbsystem.Therearetwotypesoftemporarytables:localtemporarytables,whicharevisibleonlytotheconnectionthatcreatedthem,andglobaltemporarytables,thatarevisibletoallconnections.

第9题:

You completed the development of a new application and want to create a new domain in a new environment for functional testing. You want to have the same settings for your new domain as your old domain, with the option of changing the configuration in the new target environment. Which two actions should you execute?()

  • A、Use the introspect () command in WLST to gather the configuration information from the  original domain.
  • B、Use pack/unpack to transfer the domain from one machine to another.
  • C、Create a domain template from the original domain using the Domain Template Builder and use  the Configuration Wizard to create a new domain from the template.
  • D、Use the Admin Console of the original domain to create a domain template from the original  domain and use the Configuration Wizard to create a new domain from the template.

正确答案:C

第10题:

You want to create a new optimized database for your transactional production environment to be used by a financial application. While creating the database, you want the Oracle software to take care of all basic settings to optimize the database performance. Which method would you use to achieve this objective?()

  • A、Use the CREATE DATABASE .. command to create the database with Oracle-managed files. 
  • B、Use the Database Configuration Assistant (DBCA) to create the database with Oracle-managed files. 
  • C、Use Enterprise Manager to create a new database with the Online Transaction Processing (OLTP) option. 
  • D、Use Database Configuration Assistant (DBCA) to create the database with Transaction Processing template. 
  • E、Use the CREATE DATABASE .. command to create the database with Automatic Storage Management (ASM) file system.

正确答案:D

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